Written Exercise 74－ Shared Bikes You must know what China's four great inventions are*, but have you eved of China's new four great inventions. Shared bikes are called one of China's new four great inventions. They appeared at the end of 2016 in our city. It became trendy for young people to use them. They have been used widely, which has improved the traffic jams during rush hour. However, their use has also caused some issues from companies putting them on the market excessively. For instance, a lot of shared bikes block sidewalks, because some people leave them anywhere after riding them. This is a picture of shared bikes, which are put on the roadside tidily. * paper, ink, the compass and gunpowder (I think this is right!)

Written Exercise 74－ Shared Bikes You must have known what China's four great inventions are, but have you ever heard of China's new four great inventions. Shared bikes are called one of China's new four great inventions. It appeared (went public?) at the end of 2016 in our city. It was a trend that young people use shared bikes. As they have been used widely(extensively?) , which has improved the traffic jams in rush hours. On the contrary, it has also derived some issues from its companies putting them on the market excessively, such as a lot of shared bike block sidewalks, some people leave the shared bikes optionally after riding. This is a picture of shared bikes, which are put on the roadside shipshape.